大连工业大学学报2025，Vol.44Issue(2)：86-91,6.DOI:10.19670/j.cnki.dlgydxxb.2025.0202
丙烯腈-丁二烯-苯乙烯/热塑性聚氨酯/氮化硅/石墨导热复合材料的制备及性能
Preparation and performance of thermally conductive composite materials based on ABS/TPU/Si3N4/FG
摘要
Abstract
ABS/TPU/Si3N4(ATS)and ABS/TPU/Si3N4/FG(ATSG)filled thermal conductive composite materials were prepared by melt blending and compression molding techniques,using acrylonitrile butadiene styrene(ABS)and thermoplastic polyurethane(TPU)as matrices and silicon nitride(Si3N4)and graphite(FG)as thermal conductive fillers.The effects of Si3N4 and FG thermal conductive fillers on the thermal conductivity,mechanical properties,microstructure,thermal stability and rheological properties of composite materials were analyzed.The results indicated that with the increase of Si3N4 and FG contents,the thermal conductivity of the composite material increases and the thermal stability is significantly improved.When the dosages of Si3N4 and FG are 30％and 5 g,respectively,the thermal conductivity of the composite material reaches the highest of 0.53 W/(m·K),increased by 221.56％compared with ABS/TPU.Si3N4 and FG are stacked and in contact in the ABS/TPU matrix,forming a dense interconnected thermal conductivity network.The composite material has a clear plateau area with little change in storage modulus and loss modulus in the low-frequency oscillation region,indicating that a rheological permeation thermal conductivity network formed with this dosage,which improves the thermal conductivity of the composite material.关键词
氮化硅/石墨/丙烯腈-丁二烯-苯乙烯/热塑性聚氨酯/导热率/导热网络Key words
silicon nitride(Si3N4)/graphite(FG)/acrylonitrile-butadiene-styrene(ABS)/thermo-plastic polyurethane(TPU)/thermal conductivity/thermal conductivity network引用本文复制引用
刘雪婷,夏英,陈浩哲,金志翔,于洪健,王事捷..丙烯腈-丁二烯-苯乙烯/热塑性聚氨酯/氮化硅/石墨导热复合材料的制备及性能[J].大连工业大学学报,2025,44(2):86-91,6.基金项目
辽宁省教育厅A类项目(LJKZ0513) （LJKZ0513）
兴辽英才计划项目(XLYC1906017). （XLYC1906017）
